MacHale uses a variety of terms and ideas within the series, which are listed in fuller detail below. •
Acolyte: A person native to some territory who is chosen by that territory's Traveler as his or her own personal aid, including the receiver and keeper of that Traveler's journals. •
The Convergence: The chain-reaction event toward which Saint Dane manipulates Halla in which all the territories reach critical turning points simultaneously, spiraling them all toward joint chaos. •
Dado (): Any humanoid robot member of the security and police forces of the monopolistic mega-corporation Blok (on Quillan) and which Saint Dane later mass-produces on Third Earth and elsewhere into his own personal armies. The name originates from the acronym D.A.D.O. (Dimond Alpha Digital Organization), a First Earth corporation that produces forge technology. •
Flume: Any of the tunnels that link each one of the territories with the other nine. At the entrance to a flume, a Traveler must speak the name of a territory, causing the flume to writhe to life, turning its rock walls into transparent crystal, emanating a jumble of pleasant musical notes, and lifting and pulling the Traveler gently into the flume towards the spoken destination. •
Forge: A shapeshifting, voice-activated technology patented by D.A.D.O. (though seemingly actually invented in Third Earth and stolen from that territory by Saint Dane) consisting of an object with flexible, elastic skin that can change into various simple geometric forms including a pyramid, a cube, and a sphere. Apparently, it is the main technology inside the robotic bodies of dados. •
Gar: The human race on Eelong, though the gar of Eelong tend to be of smaller stature than the humans of Earth and most are not educated or civilized, largely kept as "pets" or "live stock" in klee society. •
Halla: The
multiverse, including every person, thing, time, and territory there ever was. Press Tilton describes it also as "what separates order from chaos." It includes at least seven worlds with human beings; Halla, however, is also physically divided (by Saint Dane's flumes) into ten distinct territories. •
The Jakills : Solara is the essence of all positive sentient thought and creativity and it looks different to every individual—a spiritual realm or state that is neither a territory itself nor part of any territory. When every person dies, their spiritual weight is added to the accumulation called Solara. As Saint Dane manipulates the people of the territories into making self-destructive decisions, Solara begins to split into a weakening "light" Solara and a strengthening "dark" Solara. •
Territory: Any of Saint Dane's divisions of Halla, the space-time continuum, characterized by some particular world in some particular time-period. There are ten territories in total: Cloral, Denduron, Veelox, Ibara (located on the same planet as Veelox), Eelong, Quillan, Zadaa, and three different time-periods of Earth (known as First Earth, Second Earth, and Third Earth). •
Traveler: Any person indigenous to one of the
ten territories, given certain supernatural abilities and tasked with guarding that territory against Saint Dane, who calls Travelers "illusions". There are arguably two generations of Travelers, the first of which mentor the second. All Travelers, except the klee Traveler from Eelong, take the form of humans. Travelers have occasionally demonstrated the following superpowers: heightened persuasiveness; hearing all speech and reading all writing as their own native language (also known as omnilinguality); remarkable and rapid powers to heal both oneself and others; the apparent ability to read the minds of those around them; the (exceptionally rare) ability to transform into other livings beings. ==References==